What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

Back to Search

umass.edu

https://umass.edu· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

umass.edu

Mobile

Sponsored

Hosting Provider

University of Massachusetts - AMHERST

IP Address

128.119.8.148

Server Location

🇺🇸 Amherst, United States

ASN

AS1249

Organization

University of Massachusetts - AMHERST

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns2.umass.edu.ns3.umass.edu.ns1.umass.edu.

Performance

Page Speed

6.3 MB

69 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Technology Stack

14 Technologies Detected

Advertising

Google Ads LinkedIn Ads TikTok Pixel Snapchat Pixel

Analytics

Libraries

Other

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

CDN

SEO Analysis

B70/100

umass.eduumass.edu

UMass Amherst

UMass Amherst is the largest public research university in New England distinguished by top-ranked academics, innovative research, and programs. Be Revolutio...

Description truncated.

Title Length13 chars

Recommended: 50-60 chars

Description Length162 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

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Sponsored

Security Score

46%Poor

Interactive

HTTPS

WAF

64d

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age

3530

cache-control

🟡 600s(max-age=600, must-revalidate, public, s-maxage=3600)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cc2798a2d9307da-FRA

content-encoding

📦 Gzip(gzip)

content-language

Good Warning Issue

Typography & Readability

Arial

72/100

Readability

/30

24/40

15px · LH 1.87

Hierarchy

/20

25/25

2.13x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Arial

Sans32px

Body Font

Arial

Sans15px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

32px

40px

60px

15px

Augmented Fourth

Scale

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

✅ Good performance: Using 1 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

⚠️ Cramped layout: 42 elements lack adequate spacing.

GGoogle Fonts

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

TikTok PixelMid-Market

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)analytics.tiktok.com(3)googletagmanager.com(3)youtube.com(2)connect.facebook.net(2)

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Last analyzed: 11 Feb 2026 at 08:28

Historical Analysis & Change Tracking